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Finding the Fourth Proportional to 187,958.34, 281,948.91 and 75,638.13

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Solution

The fourth proportional to 187,958.34, 281,948.91 and 75,638.13 is: 113,461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,958.34 : 281,948.91 = 75,638.13 : x
  2. Step 2: Convert to fraction form
    187,958.34/281,948.91 = 75,638.13/x
  3. Step 3: Cross multiply
    187,958.34x = 281,948.91 × 75,638.13
  4. Step 4: Simplify right side
    187,958.34x = 21,326,088,307.94
  5. Step 5: Solve for x
    x = 21,326,088,307.94/187,958.34
  6. Step 6: Final answer
    x = 113,461.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.